From:
Charles Robert Darwin
To:
William Benjamin Carpenter
Date:
6 Dec [1844]
Source of text:
DAR 185: 114
Summary:
Asks WBC if he will examine a specimen of calcareous rock.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Benjamin Carpenter
Date:
[11 or 18] Dec 1844
Source of text:
University of Rochester Libraries, Department of Rare Books, Special Collections and Preservation
Summary:
Thanks WBC for offer to examine specimen and for offer of slices of shells, but has no achromatic microscope.
Contributor:
Darwin Correspondence Project
From:
William Benjamin Carpenter
To:
Charles Robert Darwin
Date:
21 Dec 1844
Source of text:
DAR 39: 33–5
Summary:
Discusses microscopic examination of rock specimens taken from Pampas deposit and from Chilean tuff. Says he finds organic remains only in the tuff.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Benjamin Carpenter
Date:
25 Dec [1844]
Source of text:
Jeffrey D. Stillwell (private collection)
Summary:
Is obliged for the account of the structure of the Pampas specimen and its difference from specimens of the modern calcareous bed of Coquimbo in Chile. If he thinks that J. S. Bowerbank can make out the nature of the specimens, they should be shown to him.
Contributor:
Darwin Correspondence Project